Railway Board offers opulent and revered job posts to its aspirants. And it is not every year that we get the notification from Railway offering a good number of vacant seats to the multitude aspirants. But the current year 2018 brought a pleasant surprise with almost 1,27,278 seats to be filled by the valid candidates. Opportunity is here but you have to welcome it with a provident strategy.
Q1. Which colour is formed when Blue and Green are mixed?
नीले और हरे रंग को मिलाने पर कौन सा रंग बनता है?
(a) Cyan / सियान
(b) Brown/ भूरा
(c) Black / काला
(d) Violet/ बैंगनी
Q2. What is the SI unit of Power?
पावर की SI इकाई क्या है?
(a) Boyle / बॉयल
(b) Watt / वाट
(c) Newton / न्यूटन
(d) Pascal/ पास्कल
Q3. For which of the following game, players must have the knowledge of Pascal's law?
निम्नलिखित में से किस खेल के लिए, खिलाड़ियों को पास्कल के सिद्धांत का ज्ञान होना चाहिए?
(a) Climbing/ चढ़ना
(b) Paragliding/ पैराग्लाइडिंग
(c) Rafting / राफ्टिंग
(d) Scuba diving/ स्कूबा डाइविंग
Q4. What is the value of the Least Distance of Distinct vision (in cm) for a normal human being?
एक सामान्य इंसान के लिए स्पष्ट दृष्टि (सेमी में) की कम दूरी का मान क्या है?
(a) 2.5
(b) 25
(c) 58
(d) 60
Q5. Who invented the Centigrade scale?
सेंटीग्रेड पैमाने का आविष्कार किसने किया?
(a) Anders Celsius / एंडर्स सेल्सियस
(b) Daniel Gabriel Fahrenheit/ डेनियल गेब्रियल फारेनहाइट
(c) William Thomson/ विलियम थॉमसन
(d) Wright Brothers/ राइट ब्रदर्स
Q6. On which principle does the hydraulic lift works?
हाइड्रोलिक लिफ्ट किस सिद्धांत पर काम करती है?
(a) Newton's law/ न्यूटन का नियम
(b) Pascal's law/ पास्कल का नियम
(c) Archimedes's law/ आर्किमिडीज का सिद्धांत
(d) Joule's law/ जूल का नियम
Q7. At what temperature (in degree celsius), the numerical values on Celsius and Fahrenheit scales become equal?
किस तापमान (डिग्री सेल्सियस में) पर , सेल्सियस और फारेनहाइट स्केल पर संख्यात्मक मान बराबर हो जाते हैं?
(a) –40
(b) 40
(c) 273
(d)–273
Q8. What is the process of conversion of solid state directly to gaseous state called?
ठोस स्थिति को सीधे गैसीय स्थिति में बदलने की प्रक्रिया क्या है?
(a) Evaporation / वाष्पीकरण
(b) Condensation/ कंडेनसेशन
(c) Sublimation / ऊर्ध्वपातन
(d) Distillation/ आसवन
Q9. The disease ‘Tetanus’ is also known as
रोग 'टेटनस' को किसके रूप में भी जाना जाता है-
(a) Gangrene/अवसाद
(b) Shingles/दाद
(c) Lock jaw/लॉक जॉव
(d) Whooping cough/काली खांसी
Q10. What is the SI unit of heat energy?
उष्ण ऊर्जा की SI इकाई क्या है?
(a) Joule / जौल
(b) Newton/ न्यूटन
(c) Calorie / कैलोरी
(d) Kelvin/ केल्विन
Q11.If the orbit of a planet is an ellipse then what is the point at which the Sun is located called?
यदि ग्रह की कक्षा एक अंडाकार है तो सूर्य जिस बिंदु पर स्थित है वह क्या कहलाता है?
(a) Centre / केंद्र
(b) Circumcentre/ परिकेन्द्र
(c) Incentre / अन्तःकेन्द्र
(d) Focus/ फोकस
Q12.. The sliding friction is _______________ than the static friction
स्थिर घर्षण की तुलना में स्लाइडिंग घर्षण _______________ है
(a) Double / दोगुणा
(b) Same/समान
(c) Greater /अधिक
(d) Smaller/ छोटा
Q13.Kelvin (K) is the unit of measurement of ________.
केल्विन (K) ________ के माप की इकाई है।
(a) Density / घनत्व
(b) Pressure/ दबाव
(c) Mass / द्रव्यमान
(d) Temperature/ तापमान
Q14. इलेक्ट्रोकार्डियोग्राम(ECG) का आविष्कार किसने किया?
(a) Willem Einthoven / विलेम इंथोवेन
(b) Edward Jenner/ एडवर्ड जेनर
(c) Antonio de Ulloa and Charles Wood / एंटोनियो डी उलोआ और चार्ल्स वुड
(d) Karl Benz/ कार्ल बेंज
Q15. If the speed of an object moving along a straight line keeps changing, its motion is said to be _________.
यदि एक सीधी रेखा के साथ चलने वाली वस्तु की गति बदलती रहती है, तो इसकी गति को _________ कहा जाता है।
(a) Uniform / समान
(b) Periodic/ सामयिक
(c) Circular/ परिपत्र
(d) Non-uniform/असमान
S1.Ans.(a)
Sol. When blue and green colour combine, the result is cyan.
S2.Ans.(b)
Sol. SI unit of power is watts. A watt is the power that it takes to do one joule of work in one second.
S3.Ans.(d)
Sol. Pascal's principle states that "a change in the pressure of an enclosed incompressible fluid is conveyed undiminished to every part of the fluid and to the surfaces of its container." For every 10m depth the pressure on the diver increases by 1 atm so at a depth of 10 meters under water, pressure is twice the atmospheric pressure at sea level. Thus, during Scuba diving players must have the knowledge of Pascal’s law.
S4.Ans.(b)
Sol. Least distance of distinct vision is defined as the minimum distance between the eye lens and the object to form a clear image. For a healthy human eye, the least distance of distinct vision is 25 cm, however it varies with age.
S5.Ans.(a)
Sol. In 1742, Swedish astronomer, Anders Celsius invented the Celsius(Centigrade) temperature scale, which was named after the inventor.
S6.Ans.(b)
Sol. Pascal's Law states that pressure that is applied to an enclosed fluid is transmitted equally to all other points. A hydraulic pump is a water pump that uses the kinetic energy of flowing water to force a small fraction of that water to a reservoir at a higher level. The hydraulic lift works because of Pascal’s law. If force is put on(according to Pascal’s Law), that force should be entirely felt on all points throughout the liquid.
S7.Ans.(a)
Sol. At -40 degrees, the numerical values on Celsius and Fahrenheit scales become equal.
S8.Ans.(c)
Sol. Sublimation is the phase transition of a substance directly from the solid to the without passing through the intermediate liquid phase.
S9. Ans.(c)
Sol. Tetanus is a bacterial disease caused by the bacteria Clostridium tetani. When the tetanus bacteria invade the body through a wound, they produce a toxin or poison, that causes muscles to become tight, which is very painful. Tetanus mainly affects the neck and abdomen. It is also known as “lock jaw” because it often causes a person’s neck and jaw muscles to lock, making it hard to open the mouth or swallow.
S10.Ans.(a)
Sol. Heat is the amount of energy that flows spontaneously from a warmer object to a cooler one. In SI system, heat energy is measured in joules (J).
S11.Ans.(d)
Sol. The Sun and the planets move around each other with their center of mass lying at the focus of the elliptical orbits. In other words, If the orbit of a planet is an ellipse then the point at which the Sun is located called Focus.
S12.Ans.(d)
Sol. The sliding friction is smaller than the static friction.
S13.Ans.(d)
Sol. The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics. The kelvin (symbol: K) is the base unit of temperature in the International System of Units (SI).
S14.Ans.(a)
Sol. Willem Einthoven invented the electrocardiogram (ECG).
S15.Ans.(d)
Sol. If the speed of an object moving along a straight line keeps changing with time then its motion is said to be non-uniform motion.
You may also like to read:
No comments:
Post a Comment